The handle of the next widget in the tab order of a field group relative to the specified widget.

Data type: HANDLE

Access: Read-only

Applies to: BROWSE widget, BUTTON widget, COMBO-BOX widget, CONTROL-FRAME widget, EDITOR widget, FILL-IN widget, FRAME widget, RADIO-SET widget, SELECTION-LIST widget, SLIDER widget, TOGGLE-BOX widget

The NEXT-TAB-ITEM attribute returns the Unknown value (?) for a widget that is at the end of the tab order in a field group.